IDL parser: implement Stringifier production

tools/idl_parser/idl_parser.py

 #!/usr/bin/env python
 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """ Parser for PPAPI IDL """
 
 #
 # IDL Parser
 #
@@ skipping 420 matching lines @@
                     | '-' INFINITY
                     | INFINITY
                     | NAN """
     if len(p) > 2:
       val = '-Infinity'
     else:
       val = p[1]
     p[0] = ListFromConcat(self.BuildAttribute('TYPE', 'float'),
                           self.BuildAttribute('VALUE', val))
 
-  # [31] Removed unsupported: Serializer, Stringifier
+  # [31] Removed unsupported: Serializer
   def p_AttributeOrOperationOrIterator(self, p):
-    """AttributeOrOperationOrIterator : StaticMember
+    """AttributeOrOperationOrIterator : Stringifier
+                                      | StaticMember
                                       | Attribute
                                       | OperationOrIterator"""
     p[0] = p[1]
 
   # [32-37] NOT IMPLEMENTED (Serializer)
-  # [38-39] FIXME: NOT IMPLEMENTED (Stringifier) http://crbug.com/306606
+
+  # [38]
+  def p_Stringifier(self, p):
+    """Stringifier : STRINGIFIER StringifierRest"""
+    p[0] = self.BuildProduction('Stringifier', p, 1, p[2])
+
+  # [39]
+  def p_StringifierRest(self, p):
+    """StringifierRest : AttributeRest
+                       | ReturnType OperationRest
+                       | ';'"""
+    if len(p) == 3:
+      p[2].AddChildren(p[1])
+      p[0] = p[2]
+    elif p[1] != ';':
+      p[0] = p[1]
 
   # [40]
   def p_StaticMember(self, p):
     """StaticMember : STATIC StaticMemberRest"""
     p[2].AddChildren(self.BuildTrue('STATIC'))
     p[0] = p[2]
 
   # [41]
   def p_StaticMemberRest(self, p):
     """StaticMemberRest : AttributeRest
@@ skipping 621 matching lines @@
 
   print '\n'.join(ast.Tree(accept_props=['PROD']))
   if errors:
     print '\nFound %d errors.\n' % errors
 
   return errors
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))